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ALFREDO ORTIZ FERNANDEZ

Publicaciones
53
Proyectos
20
Tesis
5

alfredo.ortiz@unican.es

E.T.S. de Ingenieros Industriales y de Telecomunicación. Avda. de los Castros, 46. 39005 Santander

Catedrático de Universidad

Doctor por la Universidad de Cantabria

GRUPO DE INVESTIGACIÓN EN TRANSFORMADORES ELÉCTRICOS DE POTENCIA (GITEP)

DEPARTAMENTO DE INGENIERÍA ELÉCTRICA Y ENERGÉTICA

Áreas de especialidad: INGENIERIA ELECTRICA

ORCID: 0000-0002-7560-2984

Scopus Author: 56427042200

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53 resultados

1 de 3

Study on the mechanical failure of the cellulosic insulation of continuously transposed conductors in power transformers under the influence of short circuits and thermal ageing

Artículo de Revista

Engineering Failure Analysis, 2021, 124, 105356

Autoría: CARMELA ORIA ALONSO, DIEGO FERREÑO BLANCO, ISIDRO ALFONSO CARRASCAL VAQUERO, ALFREDO ORTIZ FERNANDEZ, INMACULADA FERNANDEZ DIEGO

01/06/2021

Experimental dataset on the tensile and compressive mechanical properties of plain Kraft and crepe papers used as insulation in power transformers after ageing in mineral oil

Artículo de Revista

Data in Brief, 2021, 36, 107031

Autoría: CARMELA ORIA ALONSO, ISIDRO ALFONSO CARRASCAL VAQUERO, DIEGO FERREÑO BLANCO, INMACULADA FERNANDEZ DIEGO, ALFREDO ORTIZ FERNANDEZ

01/06/2021

Experimental and numerical analysis of cellulosic insulation failures of continuously transposed conductors under short circuits and thermal ageing in power transformers

Artículo de Revista

IEEE Transactions on Dielectrics and Electrical Insulation, 2020, 27(1), 325-333

Autoría: CARMELA ORIA ALONSO, ISIDRO ALFONSO CARRASCAL VAQUERO, ALFREDO ORTIZ FERNANDEZ, INMACULADA FERNANDEZ DIEGO, DIEGO FERREÑO BLANCO, REZZA AFSHAR, KRISTOFER GAMSTEDT

01/02/2020

Effect of TiO2 and ZnO nanoparticles on the performance of dielectric nanofluids based on vegetable esters during their aging

Artículo de Revista

Nanomaterials, 2020, 10(4), 692

Autoría: INMACULADA FERNANDEZ DIEGO, RAFAEL VALIENTE BARROSO, FELIX ORTIZ FERNANDEZ, CARLOS JAVIER RENEDO ESTEBANEZ, ALFREDO ORTIZ FERNANDEZ

06/04/2020

Titania nanofluids based on natural ester: cooling and insulation properties assessment

Artículo de Revista

Nanomaterials, 2020, 10(4), 603

Autoría: CRISTIAN OLMO SALAS, CRISTINA MENDEZ GUTIERREZ, FELIX ORTIZ FERNANDEZ, FERNANDO DELGADO SAN ROMAN, ALFREDO ORTIZ FERNANDEZ

26/03/2020

Residual biomass in Eucalyptus globulus plantations according to stand quality

Artículo de Revista

Biomass and Bioenergy, 2020, 141, 105699

Autoría: SEVERIANO FIDENCIO PEREZ REMESAL, CARLOS JAVIER RENEDO ESTEBANEZ, ALFREDO ORTIZ FERNANDEZ, FELIX ORTIZ FERNANDEZ

01/10/2020

Use of alternative fluids in very high-power transformers: experimental and numerical thermal studies

Artículo de Revista

IEEE Access, 2020, 8, 207054-207062

Autoría: RAMAZAN ALTAY, AGUSTIN SANTISTEBAN DIAZ, CRISTIAN OLMO SALAS, CARLOS JAVIER RENEDO ESTEBANEZ, ALFREDO ORTIZ FERNANDEZ, FELIX ORTIZ FERNANDEZ, FERNANDO DELGADO SAN ROMAN

27/11/2020

Application of biodegradable fluids as liquid insulation for distribution and power transformers

Comunicación a Congreso

20th IEEE International Conference on Environment and Electrical Engineering and 4th IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe): 9th-12 June 2020 Madrid

Autoría: BELEN GARCIA DE BURGOS, ALFREDO ORTIZ FERNANDEZ, CARLOS JAVIER RENEDO ESTEBANEZ, JUAN CARLOS BURGOS DÍAZ, DIEGO GARCÍA GÓMEZ, DANIEL PÉREZ ROSA

2020

Ageing of crepe paper in mineral oil and natural ester

Comunicación a Congreso

Proceedings of 2020 International Symposium on Electrical Insulating Materials (ISEIM): virtual web conference, alternative to Waseda University, Tokyo, Japan

Autoría: CRISTINA FERNANDEZ DIEGO, ALFREDO ORTIZ FERNANDEZ, INMACULADA FERNANDEZ DIEGO, CARLOS JAVIER RENEDO ESTEBANEZ, FERNANDO DELGADO SAN ROMAN

2020

Effect of magnetic and non-magnetic nanoparticles on insulation and cooling behaviour of a natural ester for power transformers

Comunicación a Congreso

Proceedings of 2020 International Symposium on Electrical Insulating Materials (ISEIM): virtual web conference, alternative to Waseda University, Tokyo, Japan

Autoría: CRISTINA MENDEZ GUTIERREZ, INMACULADA FERNANDEZ DIEGO, ALFREDO ORTIZ FERNANDEZ, FELIX ORTIZ FERNANDEZ, CRISTIAN OLMO SALAS, AGUSTIN SANTISTEBAN DIAZ, FERNANDO DELGADO SAN ROMAN, CARLOS JAVIER RENEDO ESTEBANEZ

2020

Performance analysis of natural, synthetic and mineral oil in a 100 MVA power transformer

Comunicación a Congreso

2020 IEEE 3rd International Conference on Dielectrics, ICD, Valencia, 5-9 July

Autoría: RAMAZAN ALTAY, AGUSTIN SANTISTEBAN DIAZ, CRISTIAN OLMO SALAS, FERNANDO DELGADO SAN ROMAN, CARLOS JAVIER RENEDO ESTEBANEZ, A. KEREM KÖSEOGLU, ALFREDO ORTIZ FERNANDEZ

2020

Dielectric and mechanical assessment of Kraft and Diamond Dotted paper aged with commercial vegetable oil

Comunicación a Congreso

2020 IEEE 3rd International Conference on Dielectrics, ICD, Valencia, 5-9 July

Autoría: JORDA FRANQUET MARTINEZ, INMACULADA FERNANDEZ DIEGO, ALFREDO ORTIZ FERNANDEZ

2020

Comparison of the effect of thermal aging on dielectric properties of vegetable oils and impregnated Kraft paper

Comunicación a Congreso

2020 IEEE 3rd International Conference on Dielectrics, ICD, Valencia, 5-9 July

Autoría: CRISTINA MENDEZ GUTIERREZ, HIKARU ARAKI, TAICHI YAMADA, MOTOO TSUCHIE, MASAHIRO KOZAKO, MASAYUKI HIKITA, ALFREDO ORTIZ FERNANDEZ

2020

Damage assessment of transformer Kraft paper insulation aged in mineral and vegetable oils

Artículo de Revista

Cellulose, 2019, 26(4), 2653-2672

Autoría: CRISTINA FERNANDEZ DIEGO, ALFREDO ORTIZ FERNANDEZ, ISIDRO ALFONSO CARRASCAL VAQUERO, INMACULADA FERNANDEZ DIEGO, CARLOS JAVIER RENEDO ESTEBANEZ, FERNANDO DELGADO SAN ROMAN, SORAYA DIEGO CAVIA

01/03/2019

State-of-the-art review on the performance of cellulosic dielectric materials in power transformers: mechanical response and ageing

Artículo de Revista

IEEE Transactions on Dielectrics and Electrical Insulation, 2019, 26(3), 939-954

Autoría: CARMELA ORIA ALONSO, ALFREDO ORTIZ FERNANDEZ, DIEGO FERREÑO BLANCO, ISIDRO ALFONSO CARRASCAL VAQUERO, INMACULADA FERNANDEZ DIEGO

01/06/2019

Thermal modelling of a power transformer disc type winding immersed in mineral and ester-based oils using network models and CFD

Artículo de Revista

IEEE Access, 2019, 7, 174651-174661

Autoría: AGUSTIN SANTISTEBAN DIAZ, ALEJANDRO PIQUERO GONZALEZ, FELIX ORTIZ FERNANDEZ, FERNANDO DELGADO SAN ROMAN, ALFREDO ORTIZ FERNANDEZ

02/12/2019

Effect of maghemite nanoparticles on insulation and cooling behaviour of a natural ester used in power transformers

Comunicación a Congreso

IEEE 20th International Conference on Dielectric Liquids: ICDL, Roma, 22-27 June, 2019: Proceedings

Autoría: CRISTIAN OLMO SALAS, INMACULADA FERNANDEZ DIEGO, AGUSTIN SANTISTEBAN DIAZ, CRISTINA MENDEZ GUTIERREZ, FELIX ORTIZ FERNANDEZ, ALFREDO ORTIZ FERNANDEZ

2019

Kraft and Diamond Dotted paper thermally aged in mineral oil and natural ester: mechanical characterisation

Comunicación a Congreso

IEEE 20th International Conference on Dielectric Liquids: ICDL, Roma, 22-27 June, 2019: Proceedings

Autoría: CRISTINA FERNANDEZ DIEGO, ALFREDO ORTIZ FERNANDEZ, ISIDRO ALFONSO CARRASCAL VAQUERO, INMACULADA FERNANDEZ DIEGO, FERNANDO DELGADO SAN ROMAN, CRISTIAN OLMO SALAS

2019

Impregnation processes of insulation rigid components of cellulose in synthetic ester and mineral oil

Comunicación a Congreso

IEEE 20th International Conference on Dielectric Liquids: ICDL, Roma, 22-27 June, 2019: Proceedings

Autoría: ALFREDO ORTIZ FERNANDEZ, JAIME SANZ ASENSIO, SEVERIANO FIDENCIO PEREZ REMESAL, CRISTINA FERNANDEZ DIEGO, ERNESTO IVÁN DIESTRE REDONDO, ISMAEL VELA MOREJÓN

2019

Analysis of the impregnation process of cellulosic materials by ester-based insulating liquids

Comunicación a Congreso

ARWtr2019: The 6th International Advanced Research Workshop on Transformers: 7-9 October 2019, Córdoba-Spain

Autoría: OASIS SANCIBRIAN LANA, CARLOS VILLA, INMACULADA FERNANDEZ DIEGO, CRISTIAN OLMO SALAS, ALFREDO ORTIZ FERNANDEZ

2019

Evaluation of the optimal connection of power transformers in the substations of a hospital

Artículo de Revista

Energies, 2018, 11(2), 419

Autoría: CARLOS JAVIER RENEDO ESTEBANEZ, AGUSTIN SANTISTEBAN DIAZ, FELIX ORTIZ FERNANDEZ, CRISTIAN OLMO SALAS, ALFREDO ORTIZ FERNANDEZ

11/02/2018

Hydraulic assessment of nanofluids based on mineral oil and natural ester in windings of power transformers

Comunicación a Congreso

Renewable Energy & Power Quality Journal (RE&PQJ), 2018, 1(16), 628-631

Autoría: AGUSTIN SANTISTEBAN DIAZ, ALFREDO ORTIZ FERNANDEZ, FERNANDO DELGADO SAN ROMAN, CRISTINA FERNANDEZ DIEGO, JAIME SANZ ASENSIO

2018

The aging impact on the cooling capacity of a natural ester used in power transformers

Artículo de Revista

Applied Thermal Engineering, 2018, 144, 797-803

Autoría: ALFREDO ORTIZ FERNANDEZ, FERNANDO DELGADO SAN ROMAN, FELIX ORTIZ FERNANDEZ, INMACULADA FERNANDEZ DIEGO, AGUSTIN SANTISTEBAN DIAZ

05/11/2018

Quantification of Kraft paper ageing in mineral oil impregnated insulation systems through mechanical characterization

Artículo de Revista

Cellulose, 2018, 25(6), 3583-3594

Autoría: ISIDRO ALFONSO CARRASCAL VAQUERO, CRISTINA FERNANDEZ DIEGO, JOSE ANTONIO CASADO DEL PRADO, SORAYA DIEGO CAVIA, INMACULADA FERNANDEZ DIEGO, ALFREDO ORTIZ FERNANDEZ

01/06/2018

53 resultados

1 de 3

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